/*
  Following the example of the Circle class in Section 9.2, design a class
  named Stock that contains:

  - A string data field named symbol for the stock's symbol.
  - A string data field named name for the stock's name.
  - A double data field named previousClosingPrice that stores the stock price
    for the previous day.
  - A double data field named currentPrice that stores the stock price for the
    current time.
  - A constructor that creates a stock with the specified symbol and name.
  - A method named getChangePercent() that returns the percentage changed from
    previousClosingPrice to currentPrice.

  Write a test program that creates a Stock object with the stock symbol ORCL,
  the name Oracle Corporation, and the previous closing price of 34.5. Set a
  new current price to 34.35 and display the price-change percentage.
*/

public class E9_02 {
  public static void main(String[] args) {
    Stock oracle = new Stock("ORCL", "Oracle Corporation");
    oracle.previousClosingPrice = 34.5;
    oracle.currentPrice = 34.35;

    System.out.printf("change: %.2f%%\n", oracle.getChangePercent());
  }
}
